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| author | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-21 11:58:35 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-21 11:58:35 +0300 |
| commit | 14edff88315add29099fd8eebb9ef989c2e47c18 (patch) | |
| tree | 79408381811a642d451744957a52830f84f1f643 /Documentation/virt/kvm/devices | |
| parent | 992edeaefed682511bd173dabd2f54b1ce5387df (diff) | |
| parent | cd7056ae34af0e9424da97bbc7d2b38246ba8a2c (diff) | |
| download | linux-14edff88315add29099fd8eebb9ef989c2e47c18.tar.xz | |
Merge tag 'kvmarm-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for Linux 5.5:
- Allow non-ISV data aborts to be reported to userspace
- Allow injection of data aborts from userspace
- Expose stolen time to guests
- GICv4 performance improvements
- vgic ITS emulation fixes
- Simplify FWB handling
- Enable halt pool counters
- Make the emulated timer PREEMPT_RT compliant
Conflicts:
include/uapi/linux/kvm.h
Diffstat (limited to 'Documentation/virt/kvm/devices')
| -rw-r--r-- | Documentation/virt/kvm/devices/vcpu.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/devices/vcpu.txt b/Documentation/virt/kvm/devices/vcpu.txt index 2b5dab16c4f2..6f3bd64a05b0 100644 --- a/Documentation/virt/kvm/devices/vcpu.txt +++ b/Documentation/virt/kvm/devices/vcpu.txt @@ -60,3 +60,17 @@ time to use the number provided for a given timer, overwriting any previously configured values on other VCPUs. Userspace should configure the interrupt numbers on at least one VCPU after creating all VCPUs and before running any VCPUs. + +3. GROUP: KVM_ARM_VCPU_PVTIME_CTRL +Architectures: ARM64 + +3.1 ATTRIBUTE: KVM_ARM_VCPU_PVTIME_IPA +Parameters: 64-bit base address +Returns: -ENXIO: Stolen time not implemented + -EEXIST: Base address already set for this VCPU + -EINVAL: Base address not 64 byte aligned + +Specifies the base address of the stolen time structure for this VCPU. The +base address must be 64 byte aligned and exist within a valid guest memory +region. See Documentation/virt/kvm/arm/pvtime.txt for more information +including the layout of the stolen time structure. |